Home / 864,847.20-1,297,270.80-627,074.40

Finding the Fourth Proportional to 864,847.20, 1,297,270.80 and 627,074.40

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Solution

The fourth proportional to 864,847.20, 1,297,270.80 and 627,074.40 is: 940,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,847.20 : 1,297,270.80 = 627,074.40 : x
  2. Step 2: Convert to fraction form
    864,847.20/1,297,270.80 = 627,074.40/x
  3. Step 3: Cross multiply
    864,847.20x = 1,297,270.80 × 627,074.40
  4. Step 4: Simplify right side
    864,847.20x = 813,485,308,547.52
  5. Step 5: Solve for x
    x = 813,485,308,547.52/864,847.20
  6. Step 6: Final answer
    x = 940,611.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.